(1):

(superl.) Smooth; slippery; as, ice is glib.

(2):

(superl.) Speaking or spoken smoothly and with flippant rapidity; fluent; voluble; as, a glib tongue; a glib speech.

(3):

(v. t.) To make glib.

(4):

(n.) A thick lock of hair, hanging over the eyes.

(5):

(v. t.) To castrate; to geld; to emasculate.